\documentclass[draft,debug]{article}

\usepackage{xparse}

% standard commands
\providecommand{\VimtexStandardProvide}{}
\newcommand{\VimtexStandardNew}{}
\renewcommand{\VimtexStandardRenew}{}% this will not compile

\newenvironment{VimtexEnvStandardNew}[]{}{}
\renewenvironment{VimtexEnvStandardRenew}[]{}{}

% xparse commands
\NewDocumentCommand{\VimtexXparseNewDocumentCommand}{}{}
\RenewDocumentCommand{\VimtexXparseRenewDocumentCommand}{}{}
\ProvideDocumentCommand{\VimtexXparseProvideDocumentCommand}{}{}
\DeclareDocumentCommand{\VimtexXparseDeclareDocumentCommand}{}{}

\NewExpandableDocumentCommand{\VimtexXparseNewExpandableDocumentCommand}{}{}
\RenewExpandableDocumentCommand{\VimtexXparseRenewExpandableDocumentCommand}{}{}
\ProvideExpandableDocumentCommand{\VimtexXparseProvideExpandableDocumentCommand}{}{}
\DeclareExpandableDocumentCommand{\VimtexXparseDeclareExpandableDocumentCommand}{}{}

\NewDocumentEnvironment{VimtexEnvXparseNew}{}{}{}
\RenewDocumentEnvironment{VimtexEnvXparseRenew}{}{}{}
\ProvideDocumentEnvironment{VimtexEnvXparseProvide}{}{}{}
\DeclareDocumentEnvironment{VimtexEnvXparseDeclare}{}{}{}



\begin{document}

% Complete commands ala \VimtexStandard
% Complete environments like \begin{VimtexEnvXparseNew}

\end{document}
